Since 1917, World Book Inc. has set the standard for providing accuracy, objectivity, and reliability in research materials for both children and adults.
Based in Chicago, Illinois, World Book is an industry leader in the production of award-winning encyclopedias, reference sources, and multimedia products for the home and schools.

For over 80 years, World Book has been committed to publishing encyclopedias and references that meet the highest standards of editorial excellence while keeping pace with the technological developments that define the computer age.

This commitment has culminated in the publication of the Number-1 selling print Encyclopedia in the World, World Book, and market leading electronic products such as World Book Multimedia Encyclopedia and World Book Online. Recent publications include World Book Student Discovery Encyclopedia, a new Childcraft-The How and Why Library, and Animals of the World.